19e3ce5ee3
1. Add interrupt context check function (context_gcc.S) 2. Add lock (semaphore) for IIC, USART and Ethernet drivers to prevent simultaneously access 3. Add multiple channels support for scan mode of ADC driver 4. Modify miscellaneous drivers according to ADC driver changes 5. Add SWO output enable function (board.c) 6. Disable all interrupts in GPIO interrupt handler (hdl_interrupt.c) 7. Add two Ethernet utility functions (drv_ethernet.c) 8. Add accelerometer driver (analog output) 9. Add accelerometer demo (draft, application.c) git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1654 bbd45198-f89e-11dd-88c7-29a3b14d5316
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/***************************************************************************//**
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* @file drv_adc.h
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* @brief ADC driver of RT-Thread RTOS for EFM32
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* COPYRIGHT (C) 2011, RT-Thread Development Team
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* @author onelife
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* @version 0.4 beta
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*******************************************************************************
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* @section License
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
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*******************************************************************************
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* @section Change Logs
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* Date Author Notes
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* 2011-02-21 onelife Initial creation for EFM32
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* 2011-07-14 onelife Add multiple channels support for scan mode
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******************************************************************************/
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#ifndef __DRV_ADC_H__
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#define __DRV_ADC_H__
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/* Includes ------------------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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struct efm32_adc_device_t
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{
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ADC_TypeDef *adc_device;
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rt_uint8_t mode;
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rt_uint8_t singleCount;
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rt_uint8_t singleDmaChannel;
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rt_uint8_t scanCount;
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rt_uint8_t scanDmaChannel;
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};
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struct efm32_adc_control_single_t
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{
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rt_uint8_t count;
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rt_uint8_t dmaChannel;
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ADC_InitSingle_TypeDef *init;
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};
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struct efm32_adc_control_scan_t
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{
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rt_uint8_t count;
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rt_uint8_t dmaChannel;
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ADC_InitScan_TypeDef *init;
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};
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struct efm32_adc_control_t
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{
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rt_uint8_t mode;
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struct efm32_adc_control_scan_t scan;
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struct efm32_adc_control_single_t single;
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};
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struct efm32_adc_result_t
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{
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rt_uint8_t mode;
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void *buffer;
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};
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/* Exported constants --------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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#define ADC_MODE_SINGLE (0x01)
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#define ADC_MODE_SCAN (0x02)
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#define ADC_MODE_TAILGATE (0x04)
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#define ADC_OP_SINGLE_REPEAT (0x10)
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#define ADC_OP_SCAN_REPEAT (0x20)
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#define ADC_MASK_MODE (0x0f)
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#define ADC_MASK_OP (0xf0)
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/* Exported functions ------------------------------------------------------- */
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void rt_hw_adc_init(void);
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#endif /*__DRV_ADC_H__ */
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